Calibrachoa plant named &#39;duecalvolsun&#39;

ABSTRACT

A new and distinct cultivar of  Calibrachoa  plant named ‘Duecalvolsun’, characterized by its outwardly spreading to trailing and decumbent plant habit; vigorous growth habit; freely branching habit; early and freely flowering habit; large orange and yellow bi-colored flowers with red-colored venation; and good garden performance.

Botanical designation: Calibrachoa sp.

Cultivar denomination: ‘DUECALVOLSUN’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Calibrachoa plant, botanically known as Calibrachoa sp. and hereinafter referred to by the name ‘Duecalvolsun’.

The new Calibrachoa plant is a product of a planned breeding program conducted by the Inventor in Rheinberg, Germany. The objective of the breeding program is to create new uniform Calibrachoa plants with large and uniquely attractive flowers.

The new Calibrachoa plant originated from a cross-pollination made by the Inventor in July, 2013 in Rheinberg, Germany of a proprietary selection of Calibrachoa sp. identified as code number AA11-003133-001, not patented, as the female, or seed, parent with a proprietary selection of Calibrachoa sp. identified as code number AA12-003454-005, not patented, as the male, or pollen, parent. The new Calibrachoa plant was discovered and selected by the Inventor as a single flowering plant from within the progeny of the stated cross-pollination in a controlled greenhouse environment in Rheinberg, Germany in May, 2015.

Asexual reproduction of the new Calibrachoa plant by vegetative terminal cuttings in a controlled greenhouse environment in Rheinberg, Germany since July, 2015 has shown that the unique features of this new Calibrachoa plant are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

Plants of the new Calibrachoa have not been observed under all possible combinations of environmental conditions and cultural practices. The phenotype may vary somewhat with variations in environmental conditions such as temperature and light intensity without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Duecalvolsun’. These characteristics in combination distinguish ‘Duecalvolsun’ as a new and distinct Calibrachoa plant:

-   -   1. Outwardly spreading to trailing and decumbent plant habit.     -   2. Vigorous growth habit.     -   3. Freely branching habit.     -   4. Early and freely flowering habit.     -   5. Large orange and yellow bi-colored flowers with red-colored         venation.     -   6. Good garden performance.

The new Calibrachoa can be compared to plants of the female parent selection. Plants of the new Calibrachoa differ primarily from plants of the female parent selection in flower color as plants of the female parent selection have pink-colored flowers. In addition, plants of the new Calibrachoa flower earlier than plants of the female parent selection.

The new Calibrachoa can be compared to plants of the male parent selection. Plants of the new Calibrachoa differ primarily from plants of the male parent selection in flower color as plants of the male parent selection have pink-colored flowers. In addition, plants of the new Calibrachoa are more compact than plants of the male parent selection.

Plants of the new Calibrachoa can also be compared to plants of Calibrachoa sp. ‘Cal Yel’, disclosed in U.S. Plant Pat. No. 14,464. In side-by-side comparisons, plants of the new Calibrachoa differ primarily from plants of ‘Cal Yel’ in the following characteristics:

-   -   1. Plants of the new Calibrachoa are more compact than plants of         ‘Cal Yel’.     -   2. Plants of the new Calibrachoa have shorter and broader leaves         than plants of ‘Cal Yel’.     -   3. Plants of the new Calibrachoa have larger flowers than plants         of ‘Cal Yel’.     -   4. Plants of the new Calibrachoa and ‘Cal Yel’ differ in flower         color as plants of ‘Cal Yel’ have yellow-colored flowers with         light green-colored venation.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying colored photographs illustrate the overall appearance of the new Calibrachoa plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Calibrachoa plant.

The photograph on the first sheet is a side perspective view of a typical flowering plant of ‘Duecalvolsun’ grown in a container.

The photograph on the second sheet is a close-up view of a typical flowering plant of ‘Duecalvolsun’.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs and following observations, measurements and values describe plants grown during the summer in 12-cm containers in a glass-covered greenhouse in Rheinberg, Germany and under cultural practices typical of commercial Calibrachoa production. During the production of the plants, day and night temperatures averaged 18° C. and light levels averaged 4,500 lux. Rooted young plants were pinched one time three weeks after planting and were 13 weeks old when the photographs and description were taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2001 Edition, except where general terms of ordinary dictionary significance are used.

-   Botanical classification: Calibrachoa sp. ‘Duecalvolsun’. -   Parentage:     -   -   Female, or seed, parent.—Proprietary selection of             Calibrachoa sp. identified as code number AA11-003133-001,             not patented.         -   Male, or pollen, parent.—Proprietary selection of             Calibrachoa sp. identified as code number AA12-003454-005,             not patented. -   Propagation:     -   -   Type.—By vegetative cuttings.         -   Time to initiate roots, summer.—About five days at             temperatures about 20° C.         -   Time to initiate roots, winter.—About seven days at             temperatures about 20° C.         -   Time to produce a rooted young plant, summer.—About three             weeks at temperatures about 20° C.         -   Time to produce a rooted young plant, winter.—About four             weeks at temperatures about 20° C.         -   Root description.—Fine, fibrous; typically white in color,             actual color of the roots is dependent on substrate             composition, water quality, fertilizers, substrate             temperature and age of roots.         -   Rooting habit.—Freely branching; dense. -   Plant description:     -   -   Plant and growth habit.—Outwardly spreading to trailing and             decumbent plant habit; freely branching habit with about             eleven primary lateral branches developing per plant;             pinching enhances branching; dense and full appearance;             vigorous growth habit; moderate growth rate.         -   Plant height.—About 19 cm.         -   Plant diameter.—About 66 cm. -   Lateral branch description:     -   -   Length.—About 38 cm.         -   Diameter.—About 1.5 mm to 4 mm.         -   Internode length.—About 1 cm to 2 cm.         -   Strength.—Strong.         -   Aspect.—Initially upright to outwardly spreading to trailing             and decumbent.         -   Texture.—Pubescent.         -   Color.—Close to 199A and 144B. -   Leaf description:     -   -   Arrangement.—Before flowering, alternate, and after             flowering, opposite; simple.         -   Length.—About 2.4 cm.         -   Width.—About 8.6 mm.         -   Shape.—Oblanceolate.         -   Apex.—Rounded.         -   Base.—Cuneate.         -   Margin.—Entire.         -   Texture, upper and lower surfaces.—Pubescent.         -   Luster, upper and lower surfaces.—Matte.         -   Venation pattern.—Pinnate; arcuate.         -   Color.—Developing and fully expanded leaves, upper surface:             Close to 137A; venation, close to 142A. Developing and fully             expanded leaves, lower surface: Close to 138A; venation,             close to 142B.         -   Petioles.—Length: About 3.4 mm. Diameter: About 1.3 mm.             Texture, upper and lower surfaces: Pubescent. Color, upper             and lower surfaces: Close to 145A. -   Flower description:     -   -   Flower arrangement and habit.—Single salverform flowers             arising from leaf axils; freely flowering habit with usually             about 150 to 170 flowers per plant; flowers face upright or             outwardly.         -   Fragrance.—None detected.         -   Natural flowering season.—Early flowering habit, plants of             the new Calibrachoa initiate and develop flowers about four             to five weeks after planting; plants flower continuously             from the spring throughout the summer in Germany.         -   Flower longevity.—Individual flowers last about seven to ten             days on the plant; flowers not persistent.         -   Flower diameter.—About 2.9 cm.         -   Flower length (height).—About 2.7 cm.         -   Flower throat diameter.—About 6.2 mm.         -   Flower tube length.—About 1.7 cm.         -   Flower tube diameter, base.—About 2.1 mm.         -   Flower buds.—Length: About 2 cm. Diameter: About 2.8 mm.             Shape: Elongated oblong. Texture: Pubescent. Color: Close to             5C and 1C.         -   Corolla.—Arrangement: Five petals fused at the base and             opening into a flared trumpet. Petal length from throat:             About 2.5 cm. Petal lobe width: About 1.3 cm. Petal shape:             Roughly spatulate. Petal apex: Rounded. Petal margin:             Entire. Petal texture, upper and lower surfaces: Smooth,             glabrous. Throat texture: Smooth, glabrous. Tube texture:             Smooth, glabrous. Color: Petal, when opening, upper surface:             Close to 28B and 6C; venation, close to 46A. Petal, when             opening, lower surface: Close to 8C; venation, close to             200A. Petal, fully opened, upper surface: Close to 16A and             6C; venation, close to 46A and 45A; color becoming closer to             1A with development. Petal, when opening, lower surface:             Close to 6D; venation, close to 200A. Throat: Close to 7A;             venation, close to 152A. Tube: Close to 1C; venation, close             to 200A.         -   Calyx.—Arrangement: Star-shaped calyx with five sepals;             sepals fused at the base. Sepal length: About 1.5 cm. Sepal             width: About 2.4 mm. Sepal shape: Lanceolate. Sepal apex:             Acute. Sepal margin: Entire. Sepal texture, upper and lower             surfaces: Pubescent. Sepal luster, upper and lower surfaces:             Matte. Color, upper and lower surfaces: Close to 146A.         -   Peduncles.—Length: About 1.2 cm. Diameter: About 1 mm.             Angle: About 45° from stem axis. Strength: Moderately             strong. Texture: Pubescent. Color: Close to 149A.         -   Reproductive organs.—Stamens: Quantity: Six per flower.             Filament length: About 8.6 mm. Filament color: Close to             150C. Anther shape: Ellipsoidal. Anther length: About             0.8 mm. Anther color: Close to 7A. Pollen amount: Scarce.             Pollen color: Close to 5C. Pistils: Quantity: One per             flower. Pistil length: About 9.1 mm. Style length: About             7.9 mm. Style color: Close to 150B. Stigma shape:             Ellipsoidal. Stigma color: Close to 149A. Ovary color: Close             to 150A. Seeds and fruits: Seed and fruit development have             not been observed on plants of the new Calibrachoa. -   Garden performance: Plants of the new Calibrachoa have been observed     to have good garden performance and tolerate wind, rain and     temperatures ranging from about 5° C. to about 40° C. -   Pathogen & pest resistance: Plants of the new Calibrachoa have not     been observed to be resistant to pathogens and pests common to     Calibrachoa plants. 

It is claimed:
 1. A new and distinct Calibrachoa plant named ‘Duecalvolsun’ as illustrated and described. 